LAB 2-5 Resource Manipulation

Objective

_ List examples of standard IRQ and DMA usage.

_ Explain how to determine which IRQ and DMA channels and addresses are being utilized.

_ Explain how to modify IRQ and DMA address settings to resolve resource conflicts.

ACTIVITY

Recording your lab workstation’s IRQ settings

1. Start your lab workstation, open Windows XP.
2. Click the Start button.
3. Point to Settings.
4. Click Control Panel.
5. Double-click the System icon.
6. Click the Device Manager tab, then click ViewàResources by type as shown in Figure 2-2.
7. Click Interrupt Request

8. Record the device name for each of the following IRQs:

IRQ 00

IRQ 01

IRQ 02

IRQ 03

IRQ 04

IRQ 05

IRQ 06

IRQ 07

IRQ 08

IRQ 09

IRQ 10

IRQ 11

IRQ 12

IRQ 13

IRQ 14

IRQ 15

Recording your lab workstation’s DMA settings

1. Start your lab workstation, and allow it to boot into Windows 9x.
2. Click the Start button.
3. Point to Settings.
4. Click Control Panel.
5. Double-click the System icon.
6. Click the Device Manager tab.
7. Click viewàResource by type.
8. Click the Direct Memory Access (DMA) option button.
9. Record the device name for each of the following DMA channels:

DMA 01

DMA 02

DMA 03

DMA 04

Windows 7

1. Open 7.
2. Right click on My Computer and select manage.
3. You are now in System Tools. Nifty, huh? Select Device Manager.
4. View devices by resources.
5. Click on IRQ
6. Fill out the table below

IRQ

Device

Viewing Device Resources by Device

1. ViewàDevices by type.
2. Find your Network Adapter.
3. Right clickàProperties
4. What resources are assigned to this device?

5. Why does it NOT have DMA assigned?

6. What two things (probably, maybe 3) do have DMAs assigned?

Note: For the A+ Certification you should know:

1. IRQs

2. What I/O addresses are

3. What might be assigned a DMA.

4. What resources can be assigned (all four)

5. What memory addresses are.

6. More than one way to get to device manager. List the two ways you know to get to device manager in Windows XP